MW12 Includes Only:Two Sample Cuvettes and CapsSix powder reagents for Phosphate Low Range1 x 1.5V AAA BatteryInstruction ManualMW12 Phosphate TesterThe Milwaukee MW12 Phosphate Photometer lets you go digital with your testing. No more hit and miss testing with strips. Great for aquariums, aquaculture & coral, labs, water treatment, classroom and more. This meter is also ideal for educators that want their students to learn the basics of water quality analysis to apply in the real world.Simply add the reagent and get a digital reading accurate to ±0.04 ppm within minutes. Features:Fast, easy-to-read results with large digital LCD readout.Range from 0.00 to 2.50 ppm.Accurate to ±0.04 ppm or ±4% of reading at 25 °C.Small and ergonomic design.No calibration needed.Reliable and repeatable measurements with no visual assessment.Adaptation of the Standard Methods for the Examination of Wastewater 20th edition.Runs on 1 x AAA battery with auto shut off to extend battery life.